Liquid phase migration in cemented carbides – Experiments and modelling
Artikel i vetenskaplig tidskrift, 2023

Liquid phase migration (LPM) and its potential impact on the phenomenon known as cobalt capping in cemented carbides have been investigated through experiments on fully densified, pre-sintered samples and simulations. A model for LPM was developed based on interface energies, grain size, and contiguity, and was implemented and integrated with Thermo-Calc software to make predictions about the final microstructure. The model's predictions, when applied to cases with gradients in grain size and volume fraction of the binder phase, were found to somewhat match experimental observations. Additionally, it was obsereved that LPM can cause a phenomenon resembling cobalt capping due to gradients in carbon activity.


Cemented carbides

Liquid phase migration

Liquid phase sinteirng



Armin Salmasi

Kungliga Tekniska Högskolan (KTH)

Imran Hanif

Chalmers, Kemi och kemiteknik, Energi och material

Torbjörn Jonsson

Chalmers, Kemi och kemiteknik, Energi och material

H. Larsson

Kungliga Tekniska Högskolan (KTH)

International Journal of Refractory Metals and Hard Materials

02634368 (ISSN) 22133917 (eISSN)

Vol. 112 106118

Sintring av inhomogena strukturer för förbättra prestanda. Materials Science 2015.

Stiftelsen för Strategisk forskning (SSF) (RMA15-0062), 2016-05-01 -- 2021-06-30.


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Metallurgi och metalliska material

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